User's Manual

Bay Level Offset Calibration – continued
May 2000
3-65
SC 4812T CDMA BTS Optimization/ATP
Connect the test equipment as shown in Figure 3-11 and Figure 3-12 and
follow the procedure in Table 3-33 to perform the TX calibration test.
Before installing any test equipment directly to any TX
OUT connector, first verify there are no CDMA BBX2
channels keyed. Failure to do so can result in serious
personal injury and/or equipment damage.
WARNING
Verify all BBX2 boards removed and repositioned have
been returned to their assigned shelves/slots. Any BBX2
boards moved since they were downloaded will have to be
downloaded again.
IMPORTANT
*
Follow the procedure in Table 3-33 to perform the TX calibration test.
Table 3-33: BTS TX Path Calibration
 Step Action
1 Select the BBX2(s) to be calibrated.
2 From the Tests menu, select TX Calibration or All Cal/Audit.
3 Select the appropriate carrier(s) displayed in the Channels/Carrier pick list. (Press and hold the
<Shift> or <Ctrl> key to select multiple items.)
4 Type the appropriate channel number in the Carrier n Channels box.
5 Click on OK.
6 Follow the cable connection directions as they are displayed.
A status report window displays the test results.
7 Click on Save Results or Dismiss to close the status report window.
Exception Handling
In the event of a failure, the calibration procedure displays a FAIL
message in the status report window and provides information in the
Description field.
Recheck the test setup and connection and re–run the test. If the tests fail
again, note specifics about the failure, and refer to Chapter 6,
Troubleshooting.
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